baber/WOPTO huggingface dataset:
Patent GB-191680-A (GB)
Title: Improvements in water circulating devices for steam boilers
IPC: F22D7/02
Filed: 1922-06-28
Abstract: 191,680. Ferguson, J. J. June 28, 1922. Water circulation, apparatus for promoting.- Relates to boiler water-circulating devices of the kind described in Specification 10126/09, and consists in replacing the cylinder suspended in the boiler water space by a number of vertical tubes 1 joined to headers 2, 3, to which the water supply and discharge pipes 4, 5 are connected. The tubes and the headers are united by welding.
Patent GB-234665-A (GB)
Title: Means for retaining cylinder liners
IPC: F02F1/10
Filed: 1924-07-25
Abstract: 234,665. Marks, E. C. R., (Studebaker Corporation). July 25, 1924. Cylinders, liners for.-In securing a cylinder liner the necessity for accurately machining the parts is avoided by the use of 'a wavy spring 4, preferably in the form of a split ring, inserted between a flange on the liner 3 and a recess 2 in the cylinder block.
Patent GB-226251-A (GB)
Title: Apparatus for measuring values by means of an auxiliary energy
IPC: G01F1/24
Filed: 1923-07-10
Abstract: 226,251. Roucka, E. July 10, 1923. Fluid-actuated valves.-In apparatus for regulating values such as the flow of fluid through pipes, steam pressures, and liquid levels, wherein a part sensitive to the variations of the value is returned to its zero position by the action of a servomotor, mechanical connections are arranged between the servomotor piston and the sensitive part to assist the return action and to prevent over-regulation. As shown in Fig. 4, a variation of fluid flow in a pipe 1 causes a diaphragm 12 to swing the lever 16 and operate the control valve 18 of a servomotor 23. Movement of the piston 24 adjusts a core 2 in a restriction in the pipe. 1 to establish equilibrium in the system and centralize the valve 18. The return of the valve 18 is assisted by a connection 29, 32, 38 and over-regulation is prevented by the gradual return of the pivot 38 from its displaced position by the rotation of a nut 31a by a constantly-driven disc 34. Under conditions of equilibrium the nut 31a engages the centre of the disc 34.
Patent GB-1012854-A (GB)
Title: Improvements in or relating to fluid springs
IPC: F16F9/32
Filed: 1963-05-06
Abstract: 1,012,854. Springs. STABILUS, INDUSTRIEUND HANDELSGESELLSCHAFT, m.b.H. May 6, 1963 [May 14, 1962], No. 17858/63. Heading F2S. In a high-pressure spring unit the working space 2 in a cylinder and surrounding annular chambers 3-6 are filled with a liquid which is under a pressure of the order of 2000-5000 atmospheres absolute pressure and which provides at least a part of the resilient means, a differential piston 1 working in the cylinder. The unit is preferably made of a material, e.g. aluminium, having substantially the same thermal expansion as the liquid, e.g. silicone oil. As shown, all of the annular chambers, which may be of different sizes, are separated by porous metal filters 8 and communicate by passages 7 with the working space 2. Additional resilient means, e.g. rubber or compressible fluid, e.g. air, may be inserted in one or more of the chambers 3-6, the fluid being separated, if desired, by an elastic diaphragm or bellows.
Patent GB-1172403-A (GB)
Title: Valve Systems and Containers for Liquified Gas
Inventor: HASTINGS ROBERT
IPC: F17C13/04
Filed: 1967-04-19
Abstract: 1,172,403. Liquefied gas storage containers. MINISTER OF TECHNOLOGY. 20 March, 1968 [19 April, 1967], No. 17894/67. Heading F4P. The inner end of the gas-discharge valve 12 of a liquid carbon dioxide container is secured to a length of tubing 13 which extends to near the bottom end of the container and is then double-backed on itself and terminates in the middle of the container where it is provided with an automatic pressure drop valve 15 which when valve 12 is opened is forced off its seat 19 against a spring 20 to allow passage of gas and liquid into tubing 13, part of the liquid being vaporized by the pressure drop and the remainder of the liquid being vaporized by heat withdrawn from the main body of liquid carbon dioxide prior to said pressure reduced gas arriving at the valve 12. A filling valve 22 is provided at the bottom of the bend 21.
Patent GB-121172-A (GB)
Title: Improvements in and connected with the Ventilation of Railway Vehicles.
IPC: B61D27/00
Filed: 1917-12-03
Abstract: 121,172. Robinson, J. G., and Industrial Appliances, Ltd. Dec. 3, 1917. Ventilating vehicles.-Railway carriages are ventilated by a tube 2 of considerable length having an open end 3 within the carriage at the position from which it is desired to withdraw vitiated air, and the other end 4, which may be above or below the carriage, provided with an extractor 5 to cause a partial vacuum in the tube 2 as the train moves in either direction. One extractor may serve more than one compartment. When used in a lavatory compartment, the foul-air opening of the tube is placed at about the level of the seat, and is preferably connected to the fluehing-pipe 7, Fig. 4, an automatic ball valve 6<a> preventing water, during flushing, from passing to the tube 2. The outlet end of the tube 2 is provided with a slot 10<a> disposed transversely to the direction of travel, and may be enclosed within a casing 11 open at the bottom and facing the direction of travel.
Patent GB-130519-A (GB)
Title: Improvements in or relating to Power Transmitters for Sewing Machines.
Inventor: DAVIES EDWARD
IPC: D05B69/16
Filed: 1918-11-02
Abstract: 130,519. Davies, E. Nov. 2, 1918 Sewing-machines ; starting and stopping gear. - Movement is transmitted from a shaft f to a pulley g by clutch members e, h. When the pulley g is moved to the right, the clutch is disengaged and the pulley brought to rest by brake surfaces i. The invention consists in mounting the driving member e, which supports the shaft, and the driven member g on a loose sleeve d itself mounted upon a fixed support c. The supporting bracket is formed with an oil bath u from which oil is picked up by a ring m on the shaft.
Patent GB-185889-A (GB)
Title: Improvements in and relating to fusible cut-outs for electric circuits
IPC: H01H85/055
Filed: 1921-07-01
Abstract: 185,889. British Thomson - Houston Co., Ltd., (General Electric Co.). July 1, 1921. Fusible cut-outs. - A fusible element has end portions of sheet metal doubled on lines 5 substantially parallel with the axis of the fusible section 1. The whole may be made from a single piece of sheet metal, each end member having two apertures 3 so placed that when the ends are folded they register and form terminals on opposite sides of the cut-out.
Patent GB-482729-A (GB)
Title: Improvements in or relating to wireless or like receiving systems
IPC: H03G3/22
Filed: 1936-06-29
Abstract: 482,729. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 29, 1936, No. 17982. Void. Convention date, June 29, 1936. [Class 40 (v)] In a wireless receiver embodying delayed A.V.C., the normal pre-control bias, in the forms of the invention shown in Figs. 1 to 5, is derived from a resistance 13 in the negative lead of the power supply and is applied through a diode 21, 22 which becomes nonconductive at a predetermined signal strength owing to the effect of a D.C. voltage developed on the load resistances 30, 31 by the signal detecting diode 25, 29. This voltage is thereafter used for A.V.C. Audio-frequency voltages are passed on from the load circuit through condenser 36 and potentiometer 37. A positive voltage derived from a potential divider 15<1>, 15, 14 is used to bias the cathode of the 1st. L.F. valve relatively to its grid and that of the signal detector relatively to the other cathodes. This arrangement avoids the large byepass condenser usually needed for the 1st L.F. biassing circuit. Resistance 27 and condenser 27<1> tend to eliminate hum. As shown in Fig. 1, the diodes are in the same envelope and are separaated by an earthed screen 40 but in a modification, Fig. 3 (not shown) the diode 21, 22 shares the cathode of the 1st L.F. valve, consequential modifications being made in the circuit for biassing this valve. In both cases the set is quiet because the signal detector is inoperative until signals are strong enough to overcome the voltage drop in 31. In another arrangement, Fig. 4 (not shown) the A.V.C. connection is made to the anode end of the load circuit and the junction of resistances 30, 31 is grounded through a potential divider which provides signal controlled bias for a tuning indicator. In the forms of the invention illustrated by Figs. 6 . . 10 the delaycontrolling diode acts on the means providing the A.V.C. bias rather than the means providing the initial bias. In one arrangement, Fig. 6 (not shown), the A.V.C. leads go to separate points on a potential divider which is shunted by the control diode during the delay period. In a modification, Fig. 7 (not shown), the control diode is in series with the potential divider and is nonconducting during the delay period. In a further modification, Fig. 8, different values of pre-control bias are given to the respective valves as well as different values of A.V.C. bias. During the delay period the potential dividers 88, 88a, 89 are effectively shunted by the diodes 90 .. 92. The cathode of the signal diode D1 may be positively biassed from the self-bias resistance 87 of the 1st L.F. valve as shown, or otherwise. In another modification, Fig. 9, the maximum value of the A.V.C. bias is limited by a diode D3 which becomes conductive at a predetermined signal strength.
Patent GB-1440285-A (GB)
Title: Data storage systems
IPC: G06F11/10
Filed: 1974-04-24
Abstract: 1440285 Error correction INTERNATIONAL BUSINESS MACHINES CORP 24 April 1974 [4 June 1973] 18002/74 Heading G4A Data is stored on a plurality of independently accessible storage units, e.g. magnetic tape cartridges, and check bits, each of which is a function of a corresponding bit from each data storage unit, are stored on a check unit which may be used, in the event of a catastrophic loss of data on one of the data storage units and detected by an error checking facility associated with that unit, to restore the data on that unit. Extension of the system to include more than one check unit, each of which stores the check bits for one position of a Hamming code, is also mentioned. In normal operation, one of the data storage units is selected and data thereon is updated by read before write heads 15, 21. The difference e jk  between each old bit and the corresponding new bit is EXORed with the corresponding old parity bit p k  from the check unit to update the parity bits. The parity bits are initially recorded by successively (or simultaneously) reading the data storage units to record the modulo 2 sums of the corresponding bits, and data restoration is similar reading from the good data storage units and the check unit.
Patent GB-597961-A (GB)
Title: Improvements in or relating to current-collecting devices
IPC: H02K9/28
Filed: 1945-07-16
Abstract: 597,961. Dynamo-electric machines. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 16, 1945, No. 18115. Convention date, Jan. 28, 1943. [Class 35] A collector for a machine for high altitude operation is in a separate enclosure supercharged to an air pressure higher than the ambient air pressure outside the housing by providing the enclosure with restricted intake openings directed towards the exhaust air of the machine through which air is freely circulated. In the form shown, the slip-ring enclosure 11 is supercharged by a fan 12 on the machine shaft and tube 13 while water is allowed to enter in drips at 21. Fan blades 17 may be provided on the sides of the collectorrings 8.
Patent GB-747417-A (GB)
Title: Improvements in or relating to the production of phthalic acids
IPC: C07C51/275
Filed: 1953-07-01
Abstract: Phthalic acids are prepared by a method comprising oxidizing the corresponding toluic acids in liquid phase with aqueous nitric acid at a temperature within the range 150-250 DEG  C. while maintaining the concentration of the aqueous nitric acid at 1.15 to 15 per cent by weight based on the water present throughout the oxidation. Preferably a molar ratio of nitric acid to toluic acids in the range 2:1 to 8:1 is used and the nitric acid fed into the mixture has a concentration of 10 per cent by weight.  In the examples the process is carried out both batchwise and continuously using varying reaction conditions.
Patent GB-463230-A (GB)
Title: Improvements in electrode systems for rectifying or controlling electrical oscillations
IPC: H01L21/00
Filed: 1936-07-01
Abstract: 463,230. Wireless receiving circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. July 1, 1936, No. 18267. Convention date, July 31, 1935. Addition to 462,579. [Class 40 (v)] [Also in Group XXXVI] In a rectifying contact of the kind described in the parent Specification, the flatpointed metal rod electrode 4 is embedded in an insulator 5, preferably of polysterine, so that its end 6 rests evenly in contact with the thin insulating layer 3, which is laid over the surface of the second electrode 1 of selenium. The latter is mounted on a metal foundation 2. The two insulators 5 and 3 may be secured together by an adhesive ; or the whole assembly may be surrounded by an insulating compound, to protect it from the atmosphere and to reduce the effect of mechanical vibration.
Patent GB-593124-A (GB)
Title: Improvements in props or supports for the shelves of kilns or ovens
IPC: F27D5/00
Filed: 1945-07-17
Abstract: 593,124. Supports for pottery - kiln shelves. GROCOTT, T., and GROCOTT, W. July 17, 1945, No. 18267. [Class 87(i)] [Also in Group XII] Props or supports for the bats or shelves of pottery kilns comprise a number of superimposed parts, at least two adjacent parts having spherical interengaging ends 2, 5 so that the prop accommodates itself to unevenness of the kiln floor. Bevelled margins 6 surround the spherical convex and concave zones, to permit freedom of accommodation movement. The prop parts have castellated ends 3 to interlock with similar ends on adjacent parts. The parts may be made of refractory material such as fireclay or porcelain.
Patent GB-440786-A (GB)
Title: Improvements relating to gear wheels having bronze teeth and steel hub
IPC: B22D19/00
Filed: 1935-06-26
Abstract: 440,786. Casting composite gears. DURAND, P., 31, Rue Borghese, Neuilly-sur- Seine, France. June 26, 1935, No. 18268. Convention date, Sept. 13, 1934. [Class 83 (i)] A gear-wheel or sector thereof having a bronze tooth-part d cast on a steel hub part b, has this formed with lozenge-shaped cells c, Fig. 3, which may extend to the sides of the part b, to form keys for the cast metal. The felly a may also have a concave face, a<1>, Fig. 2, to correspond with the form of the teeth. In the case of a sector, dovetail recesses e<1> are formed, the ends of the part b to form enlargements e, f on the toothed sector. Specification 329,170, [Class 83 (i)], is referred to.
Patent GB-1136084-A (GB)
Title: Improvements in or relating to tape recorders
Inventor: STREETER JOHN HAROLD
IPC: G11B15/20
Filed: 1965-04-30
Abstract: 1,136,084. Feeding record tapes. PLESSEYUK Ltd. 29 April, 1966 [30 April, 1965], No. 18272/65. Heading G5R. A tape loop is alternately formed in a trough 14 and taken up, with alternate operation of brakes 16 and 11, to give a stepwise feed of tape 7. Vacuum and atmospheric pressure are connected alternately to the trough 14 by a pneumatic switch 13 comprising a ball valve (26, Fig. 8) controlled by an electromagnet (29). An alternative construction (Fig. 6), eliminates the pneumatic switch 13.
Patent GB-1062726-A (GB)
Title: Work feeding mechanism for screw thread rolling machine
IPC: B21H9/02
Filed: 1965-04-30
Abstract: 1,062,726. Thread rolling. HARTFORD SPECIAL MACHINERY CO. April 30, 1965 [Nov. 18, 1964], No. 18306/65. Heading B3M. In a thread rolling machine, the work blanks (22) are fed between a stationary die (12), and a reciprocating die (14), by a reciprocating blade (28). The latter is screwed to a bracket (30) at (32), the bracket carries pivots (38), (40), and is swingably mounted about pivots (48), (50) in a block (42), by two sets of links (52), (54) and (56), (58). Blade (28) is urged to the right by a spring-urged plunger (82), which acts on a link (83). A cam and follower (68), (71) control the movement of the blade through links (72), (74), and a turn buckle (79), and the follower is urged into engagement with the cam by plunger (82), links (74) are urged into engagement with a stop (85) by a spring-urged plunger (88), and by retracting stop (85) follower (71) can be retracted from cam (68) to stop the feed of blade (28). During setting up, blade (28) may be retracted from below the blank feed track (20), by rotating a lever (90) to engage link (83).
Patent GB-1392676-A (GB)
Title: Method of clarifying waste coloured aqueous liquid
IPC: C02F1/52
Filed: 1973-04-17
Abstract: 1392676 Treating water KANEBO Ltd 17 April 1973 [25 April 1972 8 May 1972] 18494/73 Heading C1C Waste coloured aqueous liquids containing at least one non-anionic colouring agent are clarified by treating with a coagulating agent containing at least one condensation product of sulphonated dihydroxydiphenyl-sulphones or sulphonated dihydroxydiphenyls with C 1-4  aliphatic aldehydes, or sulphonated condensation products of dihydroxydiphenyl-sulphones or dihydroxydiphenyls with C 1-4  aliphatic aldehydes, or alkali metal or ammonium salts thereof, and removing the coagulated colouring agent from the liquid. The coagulating agent may be used together with conventional agents such as aluminium sulphate, polyaluminium chloride, iron chlorides and sulphates and polyacrylamides.
Patent GB-983600-A (GB)
Title: Heterocyclic carbonyl compounds
Inventor: HARFENIST MORTON
IPC: C07D265/38
Filed: 1962-05-15
Abstract: The invention comprises phenothiazine-, phenoxazine-, and carbazole-1-aldehydes and their oximes, hydrazones, and semi-carbazones, and the preparation of heterocyclic aldehydes of the formula <FORM:0983600/C2/1> by reacting a polycyclic-disubstituted ketoamide of the general formula <FORM:0983600/C2/2> with a complex metal hydride such as lithium aluminium hydride and hydrolysing the reaction mixture in an alkaline medium, the symbol R in the above formulae representing a C1- 4 aliphatic hydrocarbon radical, X a tertiary amino or a C1- 4 aliphatic hydrocarbon radical, and Y a system of atoms necessary to complete at least one more ring fused to the benzene ring shown in the formulae.  The invention may be combined with a process for the preparation of the starting polycyclic C-disubstituted keto-amides wherein an alkyl malonic ester is heated with the parent heterocycle of the formula <FORM:0983600/C2/3> to give a C-mono-substituted ketoamide wherein X is hydrogen, converting this either to a C-disubstituted ketoamide where X is a C1- 4 aliphatic hydrocarbon or to a bromo derivative, where X is bromine, and then reacting this with a secondary amine to give the compound where X is a tertiary amino residue.  In the first Provisional Specification it is disclosed that ortho-amino-ketones may be prepared by reaction of the C-disubstituted-ketoamides with a Grignard reagent followed by base-catalysed cleavage. 1-Acetylcarbazole is prepared by reacting 5-ethyl-5-dimethylamino-5, 6-dihydro - 4,6 - dioxo - 4H - pyrido - [3,2,1 - jk] - carbazole with methyl magnesium iodide to give 5 - ethyl - 5 - dimethylamino - 5,6 - dihydro - 4 - methyl - 4 - hydroxy - 6 - oxo - 4 - H - pyrido - [3,2,1 - jk] - carbazole hydrochloride and subjecting this to base-catalysed cleavage.
Patent GB-1194608-A (GB)
Title: Novel Halogenated Compounds of the Pregnane Series
Inventor: SYHORA KAREL
IPC: C07J75/00
Filed: 1968-04-19
Abstract: 1,194,608. 6 - Halo -16 - methylene - pregnenes. SPOFA, UNITED PHARMACEUTICAL WORKS. 19 April, 1968, No. 18616/68. Heading C2U. Novel compounds of formula (wherein X is halo, Y is Cl or Br and R is C 1-5  alkyl) are prepared by reacting the corresponding 3 - alkoxy - 6 - X - 3,5 - dienes with Cl 2 , Br 2 , HOCl or HOBr, and are convertible by dehydrohalogenation into the corresponding 3-oxo-6-X-4,6-dienes.
Patent GB-354479-A (GB)
Title: Improvements in ventilating appliances
IPC: B60J1/14
Filed: 1930-06-18
Abstract: 354,479. Vehicle ventilators. DEHN, F. B., 103, Kingsway, London.-(Oakes Products Corporation ; 102, Hennepin Street, North Chicago, U.S.A.) June 18, 1930, No. 18639. [Classes 20 (iii) and 137.] A ventilating device more particularly for vehicles, attachable to a window or door opening comprises a deflecting screen or shield pivotally supported by brackets from oppositely disposed pads adapted to engage tightly over the upper and lower reveals of the opening and retained in position by connecting means. The deflecting screen 5 is shown attached to the window opening of an automobile door 4 by means of pads 10, 12 shaped to engage with the reveals 16, 17. The upper boss of the lower pad 10 is provided with a central bore forming a pivot bearing for the lower end of a spreader rod 9 which is screw-threaded to receive a nut 14. At its upper end the rod 9 is screwed into a nut 15 having an upper extension 23 pivotally mounted in a conical recess 22 in the upper pad 12. The glass shield or screen with beading 8 is attached by screws 19 to brackets 11, 13. The lower bracket 11 is rotatably mounted about the rod 9 and rests on the lower pad while the upper bracket 13 is attached to the extension of the upper nut 15. The upper nut 15 serves to adjust the length of the spreader device and the lower nut to clamp the shield in its adjusted position. In a modification the upper surface of the pad 10 and the lower surface of the bracket 11 are provided with coacting teeth.
Patent GB-738348-A (GB)
Title: Improvements in or relating to the alkylation of hydrocarbons
IPC: C07C2/62
Filed: 1953-07-06
Abstract: <PICT:0738348/IV (b)/1> In the emulsion alkylation of isoparaffins with olefins in presence of an acid catalyst wherein part of the emulsion is continuously withdrawn to a separation zone wherein a catalyst layer containing dissolved olefins is separated from a hydrocarbon layer containing alkylate and unreacted isoparaffins, part of the withdrawn hydrocarbon layer is continuously dispersed through said catalyst layer within the separation zone whereby polymerization of said olefins is reduced.  The amount of dispersed hydrocarbon layer is sufficient to provide a molar excess, e.g. a ratio of 5 : 1 or more, of isoparaffins over olefins.  An emulsion is maintained in the reactor 11 as by agitation or recirculation at high turbulence and is withdrawn by line 15, part being recycled by lines 16, 18 and part fed to a separator 28 from which acid phase is recycled by line 32, and hydrocarbon phase taken by line 35 partly to separator 37 and partly to distribution means 41 for injecting it as a spray throughout the acid phase.  The velocity should not be such as to cause reemulsification although demulsification may be aided. An example describes the alkylation of an isobutane, butylene feed with sulphuric acid as catalyst. Isopentane, propylene and amylenes, and hydrofluoric acid, mixtures of sulphuric and phosphoric acids, and complexes of aluminium chloride and boron fluoride are other hydrocarbons and catalysts specified.